George is one today

Kate Middleton and Prince William have released two super-cute new pictures of their son Prince George to celebrate his first birthday today.

The couple, both 32, are seen playing with little George while enjoying the Sensational Butterflies exhibition at London’s Natural History Museum.

In one shot, a smiling Kate clutches her blond son as George reaches his hand out and gazes inquisitively at a flying butterfly.

The other sees adorable George – who was born at Paddington’s St Mary’s Hospital – sitting on Kate’s lap and pointing at a creature that’s just landed on his dad’s hand.

George is dressed in a navy polo shirt and stripy denim dungarees, while Kate looks pretty in an emerald-print green dress and pearl drop earrings.

Relaxed William sports a white shirt with rolled-up sleeves.

It’s thought that the Queen will attend George’s birthday party at William and Kate’s Kensington Palace apartment later today.

SEE PICTURES Baby Prince George‘s royal first year in pictures with Kate Middleton and Prince William

Anna Duff